Element name: Neon
element symbol: Ne
atomic number: 10
atomic mass: 20.1797
number of protons: 10
number of neutrons: 10
number of electrons: 2,8
interesting fact: the name means new, and it is pulled out of the air.
for the rest just add a neon bohr model ig
The atomic number is how many protons are in the nucleus of the atom. The atomic mass is how much mass is in the atom. Example: The atomic number of Helium is 2, and the atomic mass is 4. <span>To calculate the atomic number, simply count the protons.</span> <span>To </span>calculate<span> the </span>atomic mass<span> of an </span>atom,<span> add up the </span>mass<span> of </span>protons<span> and neutrons. Hope this helped! c:</span>
Answer:
www.doe.virginia.gov/testing/sol/standards_docs/...
Explanation:
Answer:
The chemical formula for potassium sulfide is K2 S. Sulfur atoms need two electrons to fill their 3p electron orbitals.
Explanation:
Hey there!
To find this, you should:
1) multiply the percentage (but in a decimal form) of each isotope by the mass.
2) add all your masses together
3) make sure to check for significant figures and you’re done!
Hope this helps :)